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Motorboating in 41-295
#6

Thanks for your prompt reply, John. I will check out all of your suggestions. I believe the set is close to working, in that I can inject a signal at the volume control and I get a good clean result. I found and replaced the two .003mfd 1000v caps under the output transformer as well as all of the exposed electrolytic and paper caps. I will look into the Micromold like caps. I didn't dig into the multi-wafer components, for obvious reasons. I did that once in a 41-300, that I now have working, except for the push button option. I'll get back to that. This 41-295 popped up, looking to be in near perfect condition, and I got distracted.

This set had an XXL and a 7A4 installed as mixer and oscillator. I have tried replacing with XXL's I have checked to be good, but inevitably I end up with 36.2v on pin 2, and .212v on the grid of the mixer and 193.5v on the plate; 1.8v on the grid and 7.4v on pin 7 of the oscillator. As you know, every other pin on both tubes is either not hooked up or is grounded. These voltages are being checked with the receiver set to "Broadcast". When I scratch the antenna terminals, I get no response from the set.

Just for grins, once I get this thing going, would it be productive to punch a hole and add that 7A6, that the 41-300 has in the enhanced AVC circuit? So far, I haven't heard a 41-295 in operation. Is there a significant difference in performance of the two sets?

Henry


Messages In This Thread
Motorboating in 41-295 - by hyounce - 11-25-2010, 03:42 PM
Re: Motorboating in 41-295 - by hyounce - 11-25-2010, 11:05 PM
Re: Motorboating in 41-295 - by Chuck Schwark - 11-26-2010, 09:27 AM
Re: Motorboating in 41-295 - by John R - 11-26-2010, 11:53 AM
Re: Motorboating in 41-295 - by codefox1 - 11-26-2010, 12:17 PM
Re: Motorboating in 41-295 - by hyounce - 11-26-2010, 01:21 PM
Re: Motorboating in 41-295 - by hyounce - 11-26-2010, 01:34 PM
Re: Motorboating in 41-295 - by codefox1 - 11-26-2010, 01:49 PM
Re: Motorboating in 41-295 - by hyounce - 11-27-2010, 04:06 PM
Re: Motorboating in 41-295 - by Chuck Schwark - 11-27-2010, 05:14 PM



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